The C6 is still listed but as far as I know its only the ones which are left, no more are to be built. No doubt there is a bit of a field full of them somewhere. Don't forget what happened with some of them, some on 07 plates were found to be from the 2005 manufacture year. Mind, that was possibly Citroen getting a bit over excited at their new car and thought it would sell in bigger numbers so made more.
There are still some bad roads in France and I thought the C5 suited them perfectly. Though your very right Jim, a lot of their roads are so smooth and so quiet now.
I don't think ive ever had my Xantia really loaded up, I have the XM and C5s many times and have not found any difference in handling abilities. Perhaps if the rear tyres are underpressured for the extra weight it might be a bit wollowy. As our C5 estate always carries heavy loads I set the pressures to 36 front and 38 rear and I can't tell a difference between it being full or empty, apart from a better ride when its full.
Its a shame really and I can see Citroen going away from it totally before long.
Ive been thinking lately why do I have such a huge car, as day to day its only ever me or me and one other in the car. Though to go back to a normally sprung car would be very difficult, not only for ride but the other advantages I use it for too. Its also nice for when I do carry 4 or 5 people in the car and luggage that it does it admirably. What luxury!
Our eldest C5 SX is always bumping up and down farm lanes, often with lots of horse feed in the boot. Or its got a bike rack with three bikes on the back, 4 people inside and lugage and it does everything in its stride and comfort. We are thinking about changing that one at the moment, but it will be hard not to replace it with another, but newer, C5
C5s are great addo, I prefer them to Xantias for a daily car. I far prefer the driving position, there is more space, a bigger boot, more kit, its a better and quieter cruiser (though the Xantia is excellet) and yes, it does bring those few more modern touches. For simplicity then the Xantia wins as it doesnt have the comms2000 multiplexing, however really thats not a huge problem. Ive only had one problem with C5 multiplexing in over 3 years and a collective 110K miles in C5s.
As ever, 2.0HDi 110 8v in the S1 or 2.0HDi 138 16v in S2, are the ones to go for. Saying that the 1.6 is a pretty decent engine too, if regularily serviced.